If you’re considering a boat tour around Santorini’s famous caldera, the Caldera Morning Cruise with King Thiras Boat offers an intriguing mix of volcanic scenery, relaxing hot springs, and island charm—all in about seven hours. This tour is popular for good reason, and we’ve gathered all the details to help you decide if it’s the right fit.
We particularly like the opportunity to see multiple islands in one trip—something many visitors miss—and the authentic sailing experience aboard a traditional three-masted vessel. The tour’s well-structured stops allow an authentic connection to the landscape and local scenery. However, with a sizable group, you might experience some crowds, especially during peak season. Still, if you’re eager for a relaxed, scenic day with a knowledgeable guide, this cruise could be a highlight of your Santorini visit.
This experience is best suited for travelers who enjoy outdoor adventures, scenic views, and a touch of local history. It’s ideal for those who want a balanced mix of exploration and relaxation without breaking the bank.
Key Points

- Includes visits to three volcanic islands—Nea Kameni, Palea Kameni, and Thirasia—offering diverse scenery.
- Seaside views of Santorini’s cliffs and Oia provide fantastic photo opportunities.
- Stops for swimming and relaxing in hot springs, with no need for advanced planning.
- Guided commentary enhances understanding of the volcanic formation and island history.
- Comfortable, air-conditioned transportation ensures a pleasant transfer to and from the port.
- Great value for money at around $60 per person, including multiple experiences in one trip.
Exploring the Itinerary: What to Expect

You can also read our reviews of more tours and experiences in Santorini.
Starting Out: From Santorini to Athinios Port
The tour kicks off with a convenient bus transfer from your hotel or designated pickup point directly to Athinios Port. This setup is a plus, especially if you’re staying farther from the main port area. Once there, you’ll board the King Thiras, a traditional-looking, three-masted sailing vessel that adds an authentic touch to your day on the water.
Stop 1: The Volcano at Nea Kameni
The first major stop is Nea Kameni, the volcanic island with an active crater. The boat anchors nearby, giving you the chance to ascend the soil path and get a close look at the volcano’s crater. The ascent is manageable for most, but keep in mind there’s a 5 Euro entrance fee collected by local authorities—something to budget for.
One reviewer mentions, “We loved the way the guide explained the volcanic activity,” highlighting the value of the guided tour at this stop. The terrain is volcanic, rugged, and stark, offering unique photo opportunities and a real sense of the island’s fiery origins.
Stop 2: Palea Kameni and the Hot Springs
After exploring the crater, you’ll sail to Palea Kameni, the second lava island. Here, the boat makes a stop approximately 50 meters from the hot springs—a perfect distance for a quick swim or a relaxing soak. The waters are described as warm and inviting, although not hot enough to cause discomfort, and the mineral-rich environment makes it a fun, natural spa experience.
A recurring comment from travelers is that swimming in the hot springs was a highlight, with one noting “the water was very warm in some areas, which was perfect for a quick dip.” Remember, you can relax on the boat, enjoy the views, or take a dip if you’re feeling adventurous.
Stop 3: Thirasia Island
The third stop is Thirasia, a quieter, less touristy island that used to be part of Santorini before the volcanic explosion. Travelers are free to stay for about two hours to explore, swim, or have a seaside lunch.
Many visitors appreciate the chance to wander the charming village of Manolas, with its winding streets and traditional houses. One review states, “We had the chance to explore local life away from the crowds,” making this a welcome break from the busy Santorini scene.
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Scenic Return: Cruising Below Oia
On the way back to Athinios port, the boat glides past Oia, offering some of the best photo opportunities of the iconic cliffs and sunset views, even if it’s not sunset season. This part of the cruise is often praised for its breathtaking scenery, which many reviews mention with enthusiasm.
The Experience: What You’ll Love
The authentic sailing vessel adds charm and a sense of tradition, and several travelers appreciate the informative guides who explain volcanic formation and island history clearly. One reviewer said, “The guide was very clear in the explanations,” which can make the tour both enjoyable and educational.
The scenic views throughout the day are truly spectacular. From the crater’s rugged landscape to the lush waters of the hot springs, you’ll find plenty of chances to snap photos or simply soak in the scenery.
The opportunity to swim, relax, or explore Thirasia at your own pace means the tour feels personalized, despite the larger group size. The free time on Thirasia is especially valued, giving a taste of local island life.
Authenticity and Value
At around $60.48 per person, this tour offers excellent value—covering transportation, guiding, multiple island stops, and scenic cruising. The included features—like the comfortable, air-conditioned transfer—add to the overall comfort, especially during the busy summer months.
Reviews show that most travelers found the trip to be good value, especially those who enjoyed the mix of sightseeing and leisure. Some appreciated the insights from knowledgeable guides, which made understanding the volcanic activity much more engaging.
Possible Drawbacks
While most reviews are positive, some travelers noted large crowds on the boat, which can make certain parts less intimate. The size of the vessel means that during peak times, you might feel a bit crowded, especially when swimming or exploring Thirasia.
Plus, the entrance fee to Nea Kameni is not included in the ticket price, so you should budget for this additional cost. If you’re sensitive to sea sickness, be aware that some may find the boat movement challenging initially, but most report getting used to the motion once underway.
Who Is This Tour Best For?

This cruise is ideal for travelers seeking a scenic day out with a mix of adventure and relaxation. If you enjoy historic volcanic sites, the chance to swim in hot springs, and picturesque island scenery, you’ll find plenty to love here.
It’s also well-suited for those who prefer guided excursions that include local insights, as the guide’s explanations enhance the experience. The inclusion of free time on Thirasia makes it perfect for those wanting a taste of local life, away from the busy tourist spots.
However, if you’re looking for a quiet, intimate boat trip or a luxury experience, this might feel a bit crowded at times. It’s best for those who are comfortable with group tours and looking for good value.
FAQs

How long does the tour last?
The entire experience is approximately 7 hours, starting around 10:00 am and returning in the early afternoon.
Is transportation included?
Yes, your transfer from your hotel or designated pick-up point to Athinios port is included, making the start and end of the tour convenient.
What are the main stops during the tour?
You’ll visit the volcanic crater at Nea Kameni, swim in the hot springs near Palea Kameni, and explore Thirasia Island, with scenic cruising past Oia on the way back.
Are there any additional fees I should know about?
Yes, a 5 Euro entrance fee to Nea Kameni is collected by local authorities and not included in the ticket price.
Can children join this tour?
Yes, children under 4 can join for free and will sit on their parents’ lap on the bus, though they won’t reserve a seat.
Is this tour suitable for people with mobility issues?
While the tour involves some walking, such as ascending the crater, it’s generally accessible for most travelers who are able to walk on uneven volcanic terrain.
What about COVID-19 precautions?
The tour provider has implemented safety measures, including mask-wearing, sanitizers on the bus, and cleaning of customer touchpoints. Passengers are encouraged to bring their own masks.
Final Thoughts

The Caldera Morning Cruise with King Thiras Boat offers a well-rounded glimpse into Santorini’s volcanic origins, island culture, and stunning seascapes. The combination of natural wonders, scenic cruising, and local island exploration makes it an attractive choice for those wanting a comprehensive day on the water without the hefty price tag.
Travelers who enjoy guided explanations, picturesque views, and swimming in warm springs will find this trip both enjoyable and educational. While it may be busy during peak season, the authentic sailing experience and scenic highlights make it worth considering.
For those seeking a value-packed, scenic adventure that balances activity with relaxation, this tour hits the mark. It’s especially suited for travelers eager to see multiple sights in one day and to learn about the volcanic history of Santorini from a knowledgeable guide.
In summary, this cruise is a solid choice for those wanting a taste of volcanic adventure, island charm, and scenic sailing—delivered in a practical, affordable package that captures the essence of Santorini’s natural beauty.
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